Timepiece part, movement, timepiece exterior, timepiece, and method for manufacturing timepiece part

Abstract

Provided are a timepiece part, a movement, a timepiece exterior, a timepiece, and a method for manufacturing a timepiece part, which can obtain a novel visual effect. The timepiece part includes: a base material containing copper; and a denatured film disposed on the base material, in which the denatured film contains a bubble.

What is claimed is: 
     
         1 . A timepiece part comprising:
 a base material containing copper; and   a denatured film disposed on the base material, wherein   the denatured film contains a bubble.   
     
     
         2 . The timepiece part according to  claim 1 , wherein
 a size of the bubbles is 5 nm or more and 500 nm or less.   
     
     
         3 . The timepiece part according to  claim 1 , wherein
 the number of bubbles is 1/μm2 or more and 50/μm2 or less.   
     
     
         4 . The timepiece part according to  claim 1 , wherein
 a thickness of the denatured film is 0.1 μm or more and 20 μm or less.   
     
     
         5 . A movement comprising:
 the timepiece part according to  claim 1 .   
     
     
         6 . A timepiece exterior comprising:
 the timepiece part according to  claim 1 .   
     
     
         7 . A timepiece comprising:
 the timepiece part according to  claim 1 .   
     
     
         8 . A method for manufacturing a timepiece part, which is a method for manufacturing the timepiece part according to  claim 1 , the method comprising:
 stirring an aqueous solution containing copper sulfate and verdigris in a state where the base material containing copper is immersed in the aqueous solution.